Steel panel form



-Aug. 27, 1935. c. w. MILLER STEEL PANEL FORM Filed Oct. 14, 1952 2 Sheets-Sheet l M n |ll I LIN J0 m, w\ m V llllll |L ,L Wi," llll l llll ,will m N J NNN w r C bl.. 1 l l KVHNVMHHH L M IILI L ok L i-T'o EY I Allg 27, 1935- c. W. MILLER 2,012,616

STEEL PANEL FORM Filed OCT.. 14, 1932 2 Sheets-Sheet 2 .d y V" s fY/L ,mm mi@ L: a@ t FIQ. 5

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INVENTOR Patented g. 27, i935 f r 2,012,616 s'rlcLL PANEL FORM l Carl -W.V Mi1lerBeaver Fallspfla., assignorxto Koppel AIndustrial VCar andEquipmentvCompany, Koppel, fPa., a corporation of Pennsylvania a.

Application oc'toter'ifi, 19u32, Yserial No. 637,723- f 5 claims. a (c1. 2541315) This inventionrelates to steel panel forms used as a temporary support'for concrete flooring in the construction of buildings and *bridgesl and f more particularly to that type of form usedto support plastic concrete between .steel beams until such time as to allowY the concrete ;to become hardened and thereby self-supporting.' Y

The primary object of the invention is the con*- struction of a steel panel form'having vertical ad# justment in order to retain a plurality offorms in' the same transverse and' longitudinal plane when the surfaces of the members lsupporting the forms are not in the same plane.`

a Another object of the invention is the novel construction of a panel form and its component parts in order that it may be readily adjusted and strippedfro-m the concrete after said concrete has set and become self-supporting. Y l 'I 'Y Other objectswill become apparentto those skilled in the art, from the accompanying draw@ ings which form Va part of thepresentdescription; in which a y Fig. 1 shows in plan the supporting beams for the flooring of a bridge with the improved panel forms shown in position, vone of thefsupporting beams having a number o fffstrengthening cover plates mounted thereon. f* Fig. 2 is a sectional View 0f Fig. 1. n A Y Fig. 3 is a side elevation ofthe latch which per-- mits vertical adjustment ofthe panel form.

Fig. 4 is an end elevation ofthe latch shownin Fig.3. j y a' "L Fig. 5 is a sectional viewtaken alongline 5'v-'5 of Fig. 1 showing the arrangement of holesl in the panelv form reinforcements. Fig. 6 showsthe adjustable latch in"various positions to accommodate the differencesheight of the supporting beamsdue to the presence or absence of cover plates. a Y

Fig. 7 is a View taken along line `'I'I of Figo and shows the latch secured inposition.-

Referring now in detail tothe drawings where taken along line 2-2 l like reference characters refer to like parts, referand( 4- indicate spaced'lorngifv 2I at the end adjacent the' beamsso as to close the openings between the -T longitudinal supporting beam members ySand `Il.- As--theforms abut each other along twosidesfno flanges are usuallyY employedbut transverse angular reinforcing members 5 and 5a are secured by spotwelding, or any other desirable-method, to the underside of the topplate -I. Y -The'one'end of the` reinforcing member 5a, employing y abvertical adjusting lat'ch, preferablyterminatesfwithinthlirnits Of the depending flange 2 and the opposite end,Y extends f through the depending flange side ofthe top plate 'I.

Y Adj ac entV the extrem1ties of the reinforcements 52LV employing theA vertically Vadjustable latch are clip angles 5 secured to Vthe top plate-I inthe same lmanner thatthe reinforcing angles l5 and 5# a are secured.` The spacingof v clip angle'sffrom the' reinforcement` wforms a sleeve fori the'free passage of the latch 'I therebetweemiandalso acts as an anchoring means fori-the latch. fiApertures 8 are placed in the top plate inthesamevertical plane as the sleeved openingv between the clip angle 6 and the reinforcing member 15a yfor the purpose of allowing `a portion of the latch member Tito pass therethroughand engage withthe supporting longitudinal vbeamlmember.y Q

l The vertical adjustability of theY form lies inthe novel construction of the latch; 'I in combination with vthe angular transverse?reinforcing',member Be'and'clip 6 as will be noted from 'Figs. 3, 5,*and 6. The Llatchl comprises Va lip .portion 9, body portion I0 and tail member II. The portion 'of the body 'Ifthat projects' throughv the aperturer of thepanel form isshaped as'aqua'drantfwith' the radius. Ypoint rbelowtheftop face of the 'formto allow the' latchtostripfrom theiconcretefreely.

This'actionis also 'aidedconsiderably by the tape'r-v Y ing offside` I2"-.I`2/ (Fig.v 4).V Twogsubstantially parallel,V oblong openings I31and" I 4 are placed in the bodyp'ortionzof the latch within the limits of thefor'm'and a slot I5v in the tail portion II is located tiai'isverselyto the openings I3 and'IlI;

. Oblongfopeningsl,"I1, and I8 are so arranged in the-transversreinforcing member 15a and the adjacent clip angle 6 so. asto 'coincidewith the holes I3' 'and I 4 "in 1 thelatchwhen' the latch is in the differentpositionsto engage the top cover plates. -Openings lI9 in the reinforcing member e'and clip'vangle `I5 are spacedapart" from the group f of oblong openings I6, II andiil 'so/.as to be 'in alignment with the' slot I5 of 1atch2'|.

is accomplished "inffthe following manner. It

the supporting beam 3 are designated as A, B,

and C and that the latch 1 is shown in full lines engaging cover plate C.y The latch 'I is shown in dot and dash lines engaging'the cover plate B and A respectively. To maintain the form in position a pivotal pin 20 is inserted through the openings I 9 of the reinforcement 5a and clip 6, and the slot linthe latch '1. Opening I3'is then placedltov coincide withopenings l1 of the angular reinforcementv 5a and clip 6 and a tapered drift pin 2l is driven into these aligned open Y The drift pin 2| engaging the oblongk B to support the panel form, openingv hlrof` theA latch 1 is placed in alignment with opening-'H5` of'A r relnfereelnent -.endfellnfn the drift pin is then inserted-therein until. theterm is the desired (verticalposition, 'To' engage the-cover plate A due to the absenceof cover, platesC and B,hole l?. ofthe ,latehfl is aligned withepenings I8 el angular' reinforcement 5e and clip. angle 6 and the driit'pin Ll-fis inserted. into the aligned openings untilthe desiredfpestien of the ferm is obtained Y I Y vvOn the Opposite side of thenanl form, asemewhatsimilarelatclfiis employed. Due toN the usual absence'. of ycover plateson the longitudinal supporting beam 4, thereneednot be; any yadjustibility features embodieduinthis latch. `The bar 2 2, a ,portion` ofwhichis secured to reinvmtcernent 551, isgZ-shaped torallow the latchj23l to pass freely betweenrbar 2,2 and the transverse reinforcement 5E.; Theyhook-shaped latchk 23 is pivotally mounted; ,betweenA ,the opening: of

bar, 22,.andi reinorcemente adjacent their outer .edge by pin24.v Bolt 2,5k is insertedthrough openings. in; ythe' bar. 22j` and j reinforcement 5e t0 retainthelatch in flockedposition.

s `rWhen itgis desiredto strip; the panel forms from theconcrete; thepin 2 5 iisgremoved andthe handle y26` ofthe latch 23 isrotated in a counterclockwise. direction about'the, pin 24, thereby freeing the hook vportion of the latch 23 vfrom 4the supporting surface; of beam 4.` `With' thisy re.- leaseeelected, the panel formwill then travel .inf a;,clockwise directionuntilthe. lip 9..of; latch 1 isgfreefrom thetop 10i the supportingcover plate on beam 3.1` g` In places where cover plates are used en the longitudinalgbeams .on b othvsides of theipanel formsthe improved latch may kalso beemployed .on both ends.V of.. the .reinforcement 5%. If all thevlatchesinthepanel form are similar to latch l thepanel form may be readily stripped from the concreteby removing the drift pin's-2Igwhch will, allowthe `panelform'to be suspended away from 4the concrete. and: by swinging the form -to the right the latch on the right may be released from vthe supporting. beams land-fthe; latches.; on the left are, releasednby allowingxthedormtc; Swingin a. clockwise direction.` .Y g' U j Where panelV formsare.. supported by beams that employ ,noemer-platea.' as .shown in- Fig. 2, the forms differonly in the manner of suspension in that, the: latch, 2,1; is. substtutedyfor the latch 1'; and thegclip angle jisgomitted; The latch 27 comprises a bodyJ portion- 128;iwhichyis ,secured to, and adjacent :tneextrernityf of.: reinforcement 5e anda-hook pertionm The n portion 2,8 whichipassessthroush: an; apertur he ,ten

" It will be observed that the number of latches employed V to support the panel form may be changed asit was so shown in the drawings and describedtin. the specincation, merely as a means of exemplication. It will also be readily apparent to-.those skilled in the art that the number of openings in-the body portion of latch 1 may be changedrto suit the particular problem confronted without deviating from the scope of the appended claims. j I- Iaving thus. described ther invention what I laimeas'new anddesire to. slec'ureby` Letters Eatent'is: e v

1. In ra support for concrete `flooring, in com-f biriation, spaced longitudinal beams having their top,y surfaces in different horizontal planes, a top plate bridging *thel space between the beams hav-Y ing apertures adjacent the outer edge thereof, angularmembers secured tov theV underside of the topfplataangular clips secured to the top plate adjacent the ends of said 'angularmembeis ad-' justable latches between the angular members and clips havinga portion extending through said apertures adapted. to engage the longitudinal beams,A said latches having apluralityof elongated openings thereinrand a slot, andy means extending through the angular members, and clips engaging the elongated openings and ,slot thereby aiording vertical adjustment of the top plate.Y

2.7In a support for. concrete flooring, in combination,vspaced longitudinal beams havingtheir top surfaces indifferent horizontal planes, a form comprising. a top plate bridging the space between the. beams and having apertures adjacent the outer edgesfthereof, angular members secured to the underside ofthe top plate, angular clipssecured to the topplate adjacent the ends of said angular members, and latches mounted between theangular members and clips extending through said apertures-,andadapted to engage said beams, I

said latches having'a. plurality of elongated openings and a slot, said yelongated openings aiording thvert'ical adjustment of the top plate and said slotengaging a bolt-for. anchoring the latch within theferxifi.jv Y

' BInasupport forconcrete flooring, in combinatiomspaced longitudinalbeams havingr their tops'urfaces'in diiferent'horizontalfplanes, and a panelform. comprising atop plate having Vapertures adjacent the outerv edges thereof, angular members secured to the. underside of said top plate, angular clips secured to the topy plate adjacent the ends'of said angular members, vertically adjustable. latches mounted between the angularA members andclipshaving a portion extending V'through said apertures and adaptedto engage said longitudinal beams, said'latches havinga plurality ofelongated openings indifferent transverse planesanda slot, said elongated openingsaffolfdng the vertical vadjustment of the form-andsaid slot engaging a bolt for anchoring the-latch within the form. Y

l 4. Inasupplort for concrete flooring,- in `combinationspaced longitudinalbeams having their a panel form comprising a top plate bridging the space between the beams and having apertures adjacent the outer edges thereof, angular members secured to the underside of said top plate, angular clips secured to the toprplate adjacent the ends vof said angular members forming a sleeve for the free passage of latches, said members and clips having a plurality of elongated aligned openings therein and a bolt receiving opening spaced from said elongated openings, and latches mounted therebetweenadapted for vertical adjustment and having a portion extending through said apertures and engaging said beamsi 5. In a support for concrete ooring, in combination, spaced longitudinal beams having their top surfaces in different horizontal planes and a' panel form comprising a top plate bridging the space between the beams and having apertures adjacent the outer edge'thereOLanguIarmembers Y secured to the underside 'ofthe top plate, angular clips secured to the top plate adjacent the ends of said angular members, said angular members and clips having a pluralityof elongated aligned open-` ings therein and abolt vreceiving openingr spaced from said elongated, openings, vertically adjust. ,able latches between the angular memberand aligned with the elongated openings in the angular member and clips and a slot adapted to be aligned with the bolt receiving openings.

l CARL W. MILLER, 

